If the floor is truly frictionless, then ANY force, no matter how small, applied for
ANY time, no matter how short, will set the block in motion. The force can then
be taken away, because on a frictionless surface, NO force is required in order
to keep the block moving.
The work done is equal to the kinetic energy you want the block to have. That
can be as much or as little as you feel like giving it.
I think the answer would be b
Answer:
No
Explanation:
As we know that the electric field nullity does not define that the electric potential will be zero at that point.
- For example consider the two positive charge at the mid point of these charge electric field is zero but potential is finite.
- The electric potential has two contribution means it is positive if charges are positive and it is negative if charges are negative.
So the potential difference is 9.4229μV
Given,
mass of the electron = 9.1*10^{-31}kg
charge of electron = 1.6*10^{-19}C
From Broglie's relation we can write
mv=h/λ
So, v=h/mλ==1820.32m/s
Kinetic Energy of electron = =eV
V===9.4229μV
<h3>Electron</h3>
Unattached or attached to an atom, an electron is a negatively charged subatomic particle (not bound). One of the three main types of particles inside an atom, along with protons and neutrons, is an electron that is linked to the atom.
An atom's nucleus is made up of electrons, protons, and neutrons. The negative charge of the electron is balanced by the positive charge of the proton. An atom is in a neutral state if its protons and electrons are equal in number.
The differences between electrons and the other particles are numerous. They have a mass that is considerably lower, exist outside of the nucleus, and display both wave- and particle-like properties.
Learn more about Electron here:
brainly.com/question/1255220
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